DataTable 结果到 Json，我的 Json 有什么问题？

Question

我正在尝试将 SQL 存储过程的结果转换为 DataTable 并将其转换为 Json，以便稍后我可以将它与 Highcharts 一起使用。由于某种原因，我得到的结果格式错误：

我的控制器：

 public ActionResult GetDailyOutputByHour(int machine, string dateFrom, string dateTo, string line = "All")
    {

        Graph g = repository.Graphs.Where(p => p.GraphID == 1).FirstOrDefault();
        string result = repository.GetGraphData(g.StoredProc + " '" + line + "', " + machine + ", '" + dateFrom + "', '" + dateTo + "'");

        return Content(result, "application/json");
    }

存储库：

public string GetGraphData(string sp)
    {
        var connection = ConfigurationManager.ConnectionStrings["EFDbContext"].ConnectionString;
        using (var dataAdapter = new SqlDataAdapter("exec " + sp, connection))
        {
            var dataTable = new DataTable();

            dataAdapter.Fill(dataTable);
            dataAdapter.FillSchema(dataTable, SchemaType.Mapped);
            string json =  JsonConvert.SerializeObject(dataTable, Formatting.Indented);

            return json;
        }
    }

我得到的结果：

"[\r\n  {\r\n    \"Hour\": 7,\r\n    \"Input\": 4614,\r\n    \"Output\": 2952,\r\n    \"InTarget\": 3033,\r\n    \"OutTarget\": 2533\r\n  },\r\n  {\r\n    \"Hour\": 8,\r\n    \"Input\": 3729,\r\n    \"Output\": 2940,\r\n    \"InTarget\": 3033,\r\n    \"OutTarget\": 2533\r\n  },\r\n  {\r\n    \"Hour\": 9,\r\n    \"Input\": 4158,\r\n    \"Output\": 3798,\r\n    \"InTarget\": 3033,\r\n    \"OutTarget\": 2533\r\n  },\r\n  {\r\n    \"Hour\": 10,\r\n    \"Input\": 5310,\r\n    \"Output\": 4023,\r\n    \"InTarget\": 3033,\r\n    \"OutTarget\": 2533\r\n  },\r\n  {\r\n    \"Hour\": 11,\r\n    \"Input\": 1344,\r\n    \"Output\": 2547,\r\n    \"InTarget\": 3033,\r\n    \"OutTarget\": 2533\r\n  }\r\n]"

我做错了什么？

Answer 1

你实际上得到了正确的输出老板你看错了我认为 您应该在 Visual Studio 中使用 Text Visualizer 查看输出，所以我认为您的输出还可以

     DataSet ds = new DataSet();
    DataTable dt;
    DataRow dr;
    DataColumn objstrError;
    DataColumn objBytearr;
    dt = new DataTable();
    objstrError = new DataColumn("strID", Type.GetType("System.String"));
    objBytearr = new DataColumn("strName", Type.GetType("System.String"));
    dt.Columns.Add(objstrError);
    dt.Columns.Add(objBytearr);
    dr = dt.NewRow();
    dr["strID"] = "1";
    dr["strName"] = "Britains got talent";
    dt.Rows.Add(dr);
    string json    =JsonConvert.SerializeObject(dt,Newtonsoft.Json.Formatting.Indented);
     normal intelisense gives:"[\r\n  {\r\n    \"strID\": \"1\",\r\n          \"strName\": \"Britains got talent\"\r\n  }\r\n]"
using TextVisualizer if you see it then looks like this:[
{
"strID": "1",
"strName": "Britains got talent"
 }
]